GUIDE-VALVE 1976995 - Caterpillar

Low Voltage Switchgear
Illustration 1 g00842683
Front View (1) Circuit protection for components of the power module (2) Panel for wiring connections for the power module (3) Panel for the touchscreen display and controls (4) Compartment for the motor contactor for the radiator fan (5) Transformer primary breaker and main distribution breaker (6) Transformer for distribution (37.5 kVA, 480:240/120 ACV secondary) (7) Compartment for the generator circuit breaker and protective relaysThe components of the switchgear are contained in two cabinets. All operational interface functions for the genset are performed by the devices that are located on the doors of the right cabinet. The general layout and general component locations are shown in illustration 1.The panel for wiring connections for the power module (2) contains the following items:
Wiring connections for the power module
Circuit breakers for the distribution of AC power
Switches for AC
Circuit breakers for the distribution of DC power
Switches for DC
Battery charger
Distribution relays for the source selective power
Control circuit for the louver assembly (optional equipment)
Heater for the compartmentThe panel for the touchscreen display and controls (3) contains the following items:
Touchscreen display
Engine controls
Generator controls
Annunciator
Paralleling controls
Loading controls
Wiring connections for control by the customer
Illustration 2 g00842685
Rear View (8) Connections for the fan motor (factory connections) (9) Transformer for power distribution (37.5 kVA, 480:240/120 ACV secondary) (10) Connections for the generator (factory connections) (11) Transformer for ground current (12) Neutral for the system (13) Connections for the load (customer connections)Illustration 2 shows the locations of the components that are accessible from the back of the cabinet. Access to the rear components is through the exterior bus access doors of the power module and removable panels of the switchgear. For clarity, the panels have been removed.
Illustration 3 g00853335
Detail of the Rear View (10) Connections for the generator (factory connections) (11) Transformer for ground current (12) Neutral for the system (13) Connections for the Load (customer connections)The panels must be replaced before you energize the utility bus. The panels must be replaced before you energize the bus for the generator.Medium Voltage Switchgear
Illustration 4 g00842681
Front View (14) Door for the radiator fan contactor (15) Panel for touchscreen display and controls (16) Compartment for the generator circuit breaker (17) Panel for relays and power distributionThe components of the switchgear are contained in two cabinets. All operational interface functions for the genset are performed by the devices that are located on the doors of the right cabinet. The general layout and general component locations are shown in illustration 4.The contactor for the circuit for the fan motor is rated at 5 kV. The door for the radiator fan contactor (14) is electrically interlocked. When the door for the radiator fan contactor (14) is opened, the generator circuit breaker is tripped and the genset is shut down.The panel for touchscreen display and controls (15) contains the following items:
Touchscreen display
Engine controls
Generator controls
Annunciator
Paralleling controls
Loading controls
Wiring connections for control by the customer
Wiring connections for the power moduleA heater for the compartment is provided.The panel for relays and power distribution (17) contains the following items:
Generator multifunction relay (GMR)
Utility multifunction